callipygian

adj

1. Having beautifully shaped buttocks.

   “[…]we soon once more were in a state to renew our delicious combat; and a second course was run in the delightful callipygian recesses of Venus’s second temple of lubricity.”

   “Suddenly the music grew fainter, as if drawing away, and the dancers, their feet together and limbs half opened, descended in a slow spiral, with gentle undulations, until they touched the floor; the instant their callipygian charms grazed the mosaic, they recoiled like suddenly awakened serpents, […]”

   “Her gown (perhaps as a result of the scorching winds coming off the ambas) clung damply to her body, clearly revealing her callipygian curves and the entire shapely length of her legs.”

   “[T-Rex:] My lovely visage, callipygian frame, startlingly awesome calves and charming smile will yet go down in history!”

   “With trepidation, but not embarrassment, I offer the thought that Mrs. Obama, a formerly disadvantaged alumna of Princeton and Harvard, to judge from her well-strategized appearances on national television in exiguous dresses and trousers, is as callipygian as Jennifer Lopez.”

2. Specifically, describing a statue (often of a goddess such as Aphrodite) in a pose that shows off the figure's shapely buttocks.